config/kernel-fsync.m4

   1 dnl #
   2 dnl # Linux 2.6.x - 2.6.34 API
   3 dnl #
   4 AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITH_DENTRY], [
   5         ZFS_LINUX_TRY_COMPILE([
   6                 #include <linux/fs.h>
   7         ],[
   8                 int (*fsync) (struct file *, struct dentry *, int) = NULL;
   9                 struct file_operations fops __attribute__ ((unused));
  10
  11                 fops.fsync = fsync;
  12         ],[
  13                 AC_MSG_RESULT([dentry])
  14                 AC_DEFINE(HAVE_FSYNC_WITH_DENTRY, 1,
  15                         [fops->fsync() with dentry])
  16         ],[
  17         ])
  18 ])
  19
  20 dnl #
  21 dnl # Linux 2.6.35 - Linux 3.0 API
  22 dnl #
  23 AC_DEFUN([ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY], [
  24         ZFS_LINUX_TRY_COMPILE([
  25                 #include <linux/fs.h>
  26         ],[
  27                 int (*fsync) (struct file *, int) = NULL;
  28                 struct file_operations fops __attribute__ ((unused));
  29
  30                 fops.fsync = fsync;
  31         ],[
  32                 AC_MSG_RESULT([no dentry])
  33                 AC_DEFINE(HAVE_FSYNC_WITHOUT_DENTRY, 1,
  34                         [fops->fsync() without dentry])
  35         ],[
  36         ])
  37 ])
  38
  39 dnl #
  40 dnl # Linux 3.1 -x 3.x API
  41 dnl #
  42 AC_DEFUN([ZFS_AC_KERNEL_FSYNC_RANGE], [
  43         ZFS_LINUX_TRY_COMPILE([
  44                 #include <linux/fs.h>
  45         ],[
  46                 int (*fsync) (struct file *, loff_t, loff_t, int) = NULL;
  47                 struct file_operations fops __attribute__ ((unused));
  48
  49                 fops.fsync = fsync;
  50         ],[
  51                 AC_MSG_RESULT([range])
  52                 AC_DEFINE(HAVE_FSYNC_RANGE, 1,
  53                         [fops->fsync() with range])
  54         ],[
  55         ])
  56 ])
  57
  58 AC_DEFUN([ZFS_AC_KERNEL_FSYNC], [
  59         AC_MSG_CHECKING([whether fops->fsync() wants])
  60         ZFS_AC_KERNEL_FSYNC_WITH_DENTRY
  61         ZFS_AC_KERNEL_FSYNC_WITHOUT_DENTRY
  62         ZFS_AC_KERNEL_FSYNC_RANGE
  63 ])